Definition of chelate in English:


Syllabification: che·late
Pronunciation: /ˈkēˌlāt


  • A compound containing a ligand (typically organic) bonded to a central metal atom at two or more points.
    More example sentences
    • Stability constants of organic chelates on mineral or metal surfaces are thought to approximate levels measured by solution chemistry.
    • Organic acids have been shown to increase the solubility of minerals and form strongly bound complexes and chelates with many metal cations.
    • Iron chelates also can be used for foliar application.


Zoology Back to top  
  • (Of an appendage) bearing chelae.
    More example sentences
    • The specimen bears three chelate pereiopods, with the first much larger than the others.
    • The first chelate pereiopods of galatheoids are long and often much longer than the remainder of the pereiopods.


[with object] Chemistry Back to top  
  • Form a chelate with.
    More example sentences
    • When EDTA chelates the ions, the solution changes to the blue color of the indicator in alkaline solution.
    • EDTA chelates divalent cations and thus prevents the formation of the inactive complex.
    • It chemically captures, or chelates, excess iron but must be given intravenously or by injection.



Pronunciation: /kēˈlāSHən/
More example sentences
  • EDTA chelation was performed to remove the superficial calcium.
  • Product manufacturers have attempted to mimic this process by combining minerals with amino acids in the process of chelation.
  • This results in the release of acidic pectins and methanol as well as increased cell wall rigidity and calcium chelation.


Pronunciation: /-ˌlātər/
More example sentences
  • Studies with these ions and chelators confirm the predictions.
  • After the second blood sample had been collected, all patients had their iron chelation therapy switched to the other chelator.
  • Organic chelators that are thought to be of recent biological origin control copper speciation in seawater.

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